The student will select the appropriate distributions to use in each case.
The student will conduct hypothesis tests and interpret the results.
Supplies:
The business section from two consecutive days’ newspapers
3 small packages of M&Ms®
5 small packages of Reese's Pieces®
Increasing stocks survey
Look at yesterday’s newspaper business section. Conduct a hypothesis test to determine if
the proportion of New York Stock Exchange (NYSE) stocks that increased is greater than theproportion of NASDAQ stocks that increased. As randomly as possible, choose 40 NYSE
stocks and 32 NASDAQ stocks and complete the following statements.
${H}_{o}$
${H}_{a}$
In words, define the Random Variable. ____________=
The distribution to use for the test is:
Calculate the test statistic using your data.
Draw a graph and label it appropriately. Shade the actual level of significance.
Graph:
Calculate the p-value:
Do you reject or not reject the null hypothesis? Why?
Write a clear conclusion using a complete sentence.
Decreasing stocks survey
Randomly pick 8 stocks from the newspaper. Using two consecutive days’ business
sections, test whether the stocks went down, on average, for the second day.
${H}_{o}$
${H}_{a}$
In words, define the Random Variable. ____________=
The distribution to use for the test is:
Calculate the test statistic using your data.
Draw a graph and label it appropriately. Shade the actual level of significance.
Graph:
Calculate the p-value:
Do you reject or not reject the null hypothesis? Why?
Write a clear conclusion using a complete sentence.
Candy survey
Buy three small packages of M&Ms and 5 small packages of Reese's Pieces (same net weight as the M&Ms). Test whether or not the mean number of candy pieces per package is the same for the two brands.
${H}_{o}$ :
${H}_{a}$ :
In words, define the random variable. __________=
What distribution should be used for this test?
Calculate the test statistic using your data.
Draw a graph and label it appropriately. Shade the actual level of significance.
Graph:
Calculate the p-value:
Do you reject or not reject the null hypothesis? Why?
Write a clear conclusion using a complete sentence.
Shoe survey
Test whether women have, on average, more pairs of shoes than men. Include all forms of sneakers, shoes, sandals, and boots. Use your class as the sample.
${H}_{o}$
${H}_{a}$
In words, define the Random Variable. ____________=
The distribution to use for the test is:
Calculate the test statistic using your data.
Draw a graph and label it appropriately. Shade the actual level of significance.
Graph:
Calculate the p-value:
Do you reject or not reject the null hypothesis? Why?
Write a clear conclusion using a complete sentence.
Questions & Answers
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
Tarell
what is the actual application of fullerenes nowadays?
Damian
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
Tarell
what is the Synthesis, properties,and applications of carbon nano chemistry
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Harper
Do you know which machine is used to that process?
In this morden time nanotechnology used in many field .
1-Electronics-manufacturad IC ,RAM,MRAM,solar panel etc
2-Helth and Medical-Nanomedicine,Drug Dilivery for cancer treatment etc
3- Atomobile -MEMS, Coating on car etc.
and may other field for details you can check at Google
Azam
anybody can imagine what will be happen after 100 years from now in nano tech world
Prasenjit
after 100 year this will be not nanotechnology maybe this technology name will be change .
maybe aftet 100 year . we work on electron lable practically about its properties and behaviour by the different instruments
Azam
name doesn't matter , whatever it will be change... I'm taking about effect on circumstances of the microscopic world
Prasenjit
how hard could it be to apply nanotechnology against viral infections such HIV or Ebola?
Damian
silver nanoparticles could handle the job?
Damian
not now but maybe in future only AgNP maybe any other nanomaterials
Azam
Hello
Uday
I'm interested in Nanotube
Uday
this technology will not going on for the long time , so I'm thinking about femtotechnology 10^-15
Prasenjit
how did you get the value of 2000N.What calculations are needed to arrive at it